Cabling Arrangement

You simply couldn't ask for much more as far as connectors and cables go here. Short and long peripheral cables make this nice for keeping cable clutter down in smaller cases. Dual PCI-E cables mean that you can power up to a single high-end GPU as well. If anything, we would have liked to see an additional long SATA cable.

Rail distribution is as simple as it gets with a single 12V rail. There is no need to worry about load balancing here.

A Look Inside

As you would expect from a fanless power supply, the Platinum 520 Fanless has plenty of heat sinks on the inside of the unit. There are even some on the back of the front connector panel since it has voltage regulation built into it.

Something that I don't think that we've ever seen inside a power supply here at TweakTown is a Hitachi capacitor. Now we have.

Nippon Chemi-Con capacitors are present on the secondary side of the Seasonic Platinum 520 Fanless power supply.